54231616512 has 132 divisors (see below), whose sum is σ = 160235475400. Its totient is φ = 17656676352.

The previous prime is 54231616501. The next prime is 54231616531. The reversal of 54231616512 is 21561613245.

54231616512 is a `hidden beast` number, since 5 + 4 + 2 + 31 + 616 + 5 + 1 + 2 = 666.

It is a super-2 number, since 2×54231616512² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 327864 + ... + 464712.

Almost surely, 2^54231616512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54231616512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80117737700).

54231616512 is an abundant number, since it is smaller than the sum of its proper divisors (106003858888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54231616512 is a wasteful number, since it uses less digits than its factorization.

54231616512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136918 (or 136897 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The spelling of 54231616512 in words is "fifty-four billion, two hundred thirty-one million, six hundred sixteen thousand, five hundred twelve".